Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11448365 | Pressure vessel | Beert Jacobus Keestra, Godefridus Bernardus Wilhelmus Leonardus Ligthart | 2022-09-20 |
| 11046023 | Tapes | Beert Jacobus Keestra, Godefridus Bernardus Wilhelmus Leonardus Ligthart | 2021-06-29 |